brandsweets

Named gradient · uiGradients

Inbox

Inbox is a blue gradient from uiGradients (MIT) — #457fca → #5691c8 at 90°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

#457fca#5691c8
Open in the makerOriginal sRGB in the maker
Aa — the quick brown fox
black text · worst 5.14:1 · AA
white 3.34 AA largeblack 5.14 AAbanding high

Same stops, three spaces

The source renders this in sRGB. The number is how much chroma survives at the dullest point along the line — the difference between the first bar and the others is the grey that OKLab removes.

sRGB89%
OKLab89%
OKLCH89%

Report

  • white ink: worst 3.34:1 at 98% (AA-large only); black ink: worst 5.14:1 at 0% (AA) → use black text.
  • Banding high: ~80px bands at 1440px — add grain 50 (≈3% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(90deg, #457fca 0%, #4680ca 7.14%, #4782ca 14.29%, #4983ca 21.43%, #4a84ca 28.57%, #4b86c9 35.71%, #4c87c9 42.86%, #4d88c9 50%, #4f89c9 57.14%, #508bc9 64.29%, #518cc9 71.43%, #528dc8 78.57%, #548ec8 85.71%, #5590c8 92.86%, #5691c8 100%);
  background-image: linear-gradient(90deg in oklab, #457fca 0%, #5691c8 100%);
}
tailwind v4
bg-linear-to-r/oklab from-[#457fca] to-[#5691c8]
svg
<svg xmlns="http://www.w3.org/2000/svg" width="1440" height="600" viewBox="0 0 1440 600"><defs><linearGradient id="bs-gradient" gradientUnits="userSpaceOnUse" x1="0" y1="300" x2="1440" y2="300"><stop offset="0%" stop-color="#457fca"/><stop offset="7.14%" stop-color="#4680ca"/><stop offset="14.29%" stop-color="#4782ca"/><stop offset="21.43%" stop-color="#4983ca"/><stop offset="28.57%" stop-color="#4a84ca"/><stop offset="35.71%" stop-color="#4b86c9"/><stop offset="42.86%" stop-color="#4c87c9"/><stop offset="50%" stop-color="#4d88c9"/><stop offset="57.14%" stop-color="#4f89c9"/><stop offset="64.29%" stop-color="#508bc9"/><stop offset="71.43%" stop-color="#518cc9"/><stop offset="78.57%" stop-color="#528dc8"/><stop offset="85.71%" stop-color="#548ec8"/><stop offset="92.86%" stop-color="#5590c8"/><stop offset="100%" stop-color="#5691c8"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "inbox": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.271,
            0.498,
            0.792
          ],
          "hex": "#457fca"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.337,
            0.569,
            0.784
          ],
          "hex": "#5691c8"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #457fca 0%, #5691c8 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Inbox",
        "contrast": {
          "white": {
            "ratio": 3.344,
            "at": 0.9841,
            "passesAA": false,
            "passesAALarge": true
          },
          "black": {
            "ratio": 5.142,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "suggestedInk": "#000000"
        }
      }
    },
    "$description": "Inbox (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

Blue gradientsCoolMonochromeOcean

More blue gradients

mcpConnect your agent to the gradient engine
live endpoint

Point any MCP client at the shared gradients endpoint and your agent gets the same engine as this page — make_gradient returns CSS with the interpolation space, Tailwind v4, SVG, a PNG URL, a DTCG token and the contrast report in one call; brand_gradients derives the whole contact sheet from a brand or a palette. Read-only, no key. Every gradient is a /gradients/new/… link: open it, refine, paste it back.

endpointhttps://mcp.brandsweets.com/gradients/mcp
claude mcp add --transport http brandsweets-gradients https://mcp.brandsweets.com/gradients/mcp
try this prompt

›take the Inbox gradient (#457fca, #5691c8), re-interpolate it in oklch, and tell me the worst-case contrast for white text

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: gradients.md · From uiGradients (MIT) — licences